Internal-combustion motor



P'. F. MOORE. mTERNAL comusnoN MOTOR. APPLICATION FILED DEC. 2, 1919 1,389,453. Patented Aug-30, 1921..

ATTORNEY.

UNITED STATES PATENT oFFlcE.

PAUL F. MOORE, OF CAIRN'EYSPOINT,V NEW JERSEY.

INTERNAL-COMBUSTON MOTOR.

To zZZw/iom t may concern:

Be it known that I, PAUL F. MooRE, a citizen of the United States, residing at Carneys Point, in the county of Salem and State of New Jersey, have invented new and useful Improvements in Internal- Combustion Motors, of which the following is a specification. Y

The invention relates tointernal combustion motors and has for an object to provide an internal combustion motor or engine for the generation of power and which may be adapted to various purposes asin the operation of vehicles. stationary apparatus and any form or kind of power driven machinery. Y

The invention comprehends among other features an engine, the piston of which is actuated by exploding the compressed gas in the cylinder in which the piston operates, the

j particular form of piston and its mounting providing an engine of great simplicity in which there are very few parts, in which the use of valves is reduced to a minimum, the particular form of piston construction and mounting furthermore providing a structure which will prevent the usual side-lashand facilitate the ready compression of the gas in the cylinder immediately prior to the eX- plosion thereof. A Y

In the further disclosure of the invention, reference is to be had to the accompanying drawings constituting a part of this specification in which similar characters of reference denote corresponding parts in all the views, and in which,-

Figure 1- is a vertical longitudinal sectional view taken through a form of my internal combustion motor.

Fig. 2 is a vertical transverse sectional view taken on the line 2 2 in Fig. 1, and

Fig. 3- is an elevation of the piston.

Referring more particularly tothe views the numeral 10 indicates a cylinder having a smooth bore 11 encircled by the usual water jacket 12 supplied with water through a pipe 13 having suitable branch pipes 14 connecting therewith, with an outlet pipe 15 from the water jacket, the water jacket being of course partitioned from the interior of the cylinder 11, but cast in block therewith if desired. Extending longitudinally through the cylinder 10 is a shaft 16 which is provided with suitable stuffing boxes 17 at the points where the shaft passes through the ends 18 of the cylinder and the shaft has Specification of Letters Patent. PatentedAllg. 30, 1921. Application led December 2, 1919.

serial No. 341,908.

to slide piston 21 which is prefsolid body22 of a cylindrical nature fitting snugly within the bore' of the cylinder 10, the body carrying on its ends the usual piston rings 23 and between the piston ring-s having a continuous spirallike groove or channel 24 formed in the periphery thereof, said groove or channel' being substantially in the nature of a double parabola, that is to say in the nature ofjtwo parabolas placed end to end. The piston 21 has a squared bore 25. through which passes Vthev squared portion 20 of the shaftr 16 and it will-be seen that the cylinder 10 is provided with an outlet 26 for the burnt gases which are admitted to the cylinder through inlets 27 one at each end, the ends of the cylinder also being each provided with a spark plug 28 or any other suitable form of ignition device and whichv isin turn connected up with any suitable form of timingsystem or lthe like (not shown), ity being understood that I do 'not limit myself 'to any particular formof construction regarding the ignition mechanism. One end of the shaft 16 beyond one of the stuffing boxes 17 carries a suitable fly wheel 29, and the shaft is provided with an oilbore 30 having an outlet 31 for' lubricating the bore of the piston and the shaft where it passes through lthe bore with a quantity of oil in any manner desired.

The cylinder 10 has a centrally disposed tubular projecting casing 32 in which is arranged a heavy steel or other pin 33 Vprojecting inwardly and carrying on its inner end a roller 34;, said roller operating in the stuffing passes through Vthe stuffchannel 24 as shown with a suitable oil passage 35' also provided through the casing 32 to supply a quantity of oil to the roller and the channel.

It will be understood that I consider the particular advantages of my device to reside in the particular construction and formation of the piston, its relation to the cylinder and the particular manner of mounting the piston and having vit operate upon the squared portion of the drive shaft. Now assuming that the piston is at one end of the cylinder and that the device is in operation, it will be apparent that the rotation of the shaft 16 causes the piston to rotate within of the spiral-like channel Qarid the operation of the roller 34 therein, it will be clear that the rotation of the piston will bring about an advancement thereof in the cylinder so that the piston will slide along the shaft and will have a rotary movement which combined with its advancement in thefcylinder practically result-s in a spiral movement. Now assuming that the end of the cylinder toward which the piston is moved has been filled with gas through one of the inlets 27, it will be apparent that the spiral forward movement or advancement `of the piston will tend to readily compress the gas and when the gas has reached a suitable compression it is ignited through the medium of one of the spark plugs28, resulting in the explosion of this compressed gas. The piston will now be driven in the opposite direction in the cylinder and of course its spiral action in the reverse movement will be the same and continued and as the piston moves in the opposite direction due to the eXplosion, it will of course accelerate the rotation of the shaft and at the same time the end of the piston passing beyond the outlet 26, the burnt gases, drawn along with the piston will pass out through the outlet when it is uncovered by the piston passing beyond the same. At the same time a quantity of gas, which was drawn'into the other end of the cylinder by suction at the time the piston originally commenced its forward movement, will now be compressed by the return movement of the piston and in turn ignited and exploded when suitably compressed, the opposite end of the cylinder having now been freed from the burnt gases with new gas drawn into the cylinder to replace the burnt gases drawn therefrom. l

Of course it will be understood that I have described a direct acting motor in which the explosions alternately take place ineach end of the cylinder in each movement of the piston, but it will be understood that this may be varied depending upon the particular use and principle of construction of the motor, excepting of course that the novel points of construction and design set out herein as to the form of construction of piston and its mounting on the cylinder, are the essential features of my invention and it will of course also be clearly understood that the single unit of construction set out may be duplicated to provide a two, four, six or eight cylinder motor, as desired. It will also be apparent that I can employ any form `of inlet or outlet valve in connection with the inlets 27 and the outlet 26 and I do not limit myself to any specific form of construction of valve.

- Having described my invention, I claim,-

In an internal combustion engine, a cylinder, a rotatable shaft passing through the cylinder. and having a squared portion coextensive with the'length of the cylinder, a gas inlet adjacent each end of the cylinder, a gas outlet arranged centrallyof the cylinder, a piston mounted to reciprocate within the cylinder and having a squared longitudinally disposed bore through which the squared'portion of the shaft passes, said piston having a continuous spiral-like channel formed in the periphery thereof and eX- tending in close proximity to the ends of the piston, a tubular projection formed on the cylinder midway thereof, a pin arranged within the projection and extended within the cylinder, a roller carried by the inner end of the pin and operating in said channel to cause the piston'to rotate within the cylinder, and said pin having a longitudinal oil passage for lubricating'the parts as described.

In testimony whereof I aiix my signature.

PAUL F. MOORE. 

